OPERATING INSTRUCTIONS RH 90 C E Inspection and servicing Greasing the electric motor
Fan end
Grease the bearings at regular intervals while the electric motor is running.
 Remove screws from grease relief plunger (3, Fig. 3-19:).
Drive end
 Pull out plunger (3) completely. This is necessary for removal of all old grease
 Unscrew brass plug (arrow,Fig. 3-17:), which is accessible through an opening in the flange mount.
 Wipe off old grease and replace plunger (3) fully.
 Add new grease through nipple (1, Fig. 3-18:) until new grease emerges from bearing housing.  Wipe old grease away from the housing.
 Add the same quantity of new grease through the nipple (2, Fig. 3-18:) as was removed by the plunger.  Pull out plunger (3) again and remove old grease. Repeat this operation until new grease emerges on plunger (3).  Put plunger in place again (3) and screw in securely. Further information on the described servicing work on the electric motor is given in the operating instructions issued by the motor manufacturer.
Fig. 3-17:
Fig. 3-19:
Other servicing works Any other servicing work beyond that outlined above is carried out by the Terex|O&K After-Sales Service or by the motor manufacturer's agent. Fig. 3-18:
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BA RH90C(3 720 760.00)-EN
